Mannoroth Strategy Summary

During Phase 1, players should kill the Fel Iron Summoners in the following order:

The Fel Iron Summoner at the red Fel Spire

The Fel Iron Summoner at the green Fel Spire

The Fel Iron Summoner at the purple Fel Spire

This kill order eliminates the Infernals early so that melee DPS are not hampered by them while killing the final Fel Iron Summoner. A raid with few melee DPS could consider killing the Fel Imp summoner before the Infernal summoner.

Tanks should then position Mannoroth near the green Fel Spire, since it is the last of the Fel Spires to be destroyed by Gul'dan, and thus players will have to move less.

Tanks can put their backs to the Fel Spire so that the pillar will catch them during Massive Blast

The raid should stack tightly on one of Mannoroth's back legs, to bait Fel Imps and Infernals closer together

This will also mean that the players affected by Mannoroth's Gaze are likely to run in the same direction, allowing for easy soaking of the damage effect

The raid should assign a few players to help soak Mannoroth's Gaze and Empowered Mannoroth's Gaze, preferably players with strong mobility and damage-reduction cooldowns

Players can either regroup on the same leg after each Felseeker, or, swap to the opposite side of Mannoroth each time Felseeker is cast

When Phase 4 begins, the green Fel Spire will be destroyed, so tanks must face Mannoroth toward the center of the platform

Players must avoid being in front of Mannoroth unless they are tanking, or during Empowered Shadowforce while Mannoroth does not use his Empowered Glaive Comboabilities

The raid should spread out slightly for Empowered Mannoroth's Gaze, so that the affected players do not all run on top of each other, dealing heavy damage to each other and creating large Gazing Shadows pools

Use Bloodlust/ Heroism/ Time Warp during this phase to defeat Mannoroth quickly

Tank Responsibilities

During Phase 1, the only enemy to tank is the Doom Lord summoned by the first Fel Iron Summoner

At the start of Phase 2, pull Mannoroth toward the green Fel Spire and place your back to it

Each time Mannoroth begins his Glaive Combo, one tank should take the first Glaive Thrust and the subsequent Massive Blast, while the other tank taunts for the second Glaive Thrust

Use Active Mitigation abilities during the Glaive Thrust cast to avoid taking a Puncture Wound

The Massive Blast debuff means no tank can take two Massive Blasts in a row; the tank who takes the final Glaive Thrust of one Glaive Combo must take the first Glaive Thrust& the Massive Blast of the next Glaive Combo

When Phase 4 begins, spin Mannoroth around so he is on the edge and Empowered Massive Blast will knock you across the platform safely

During Phase 4, tanks should not both stand in front of Mannoroth, as Empowered Glaive Thrust will deal its damage to all players in front of the boss

If necessary, after an Empowered Mannoroth's Gaze creates Gazing Shadows pools, move Mannoroth a few yards along the outside edge of the platform to give the raid more space

Damage-Dealer Responsibilities

If affected by Curse of the Legion in Phase 1, run to the tank, use a cooldown, and call for a dispel

If affected by Mark of Doom in Phase 1, quickly move away from the raid, then intentionally take damage to clear the debuff